First the positive part: I really LOVED how much support this gave me and how adjustable it is. I was really excited the second I put it on because I could tell this was going to have great support and fit very well. Unfortunately, not even many miles into a run, it started to chafe painfully from both the cloth flap that covers the zipper in the middle front and where the two hooks are next to the zipper. Those hooks have big seams that stick out a lot that make it super prone to chafing. By the time I got home, I was bleeding. Now four days later, it's still painful in those places. I think if those issues could be addressed (for example, I'm not even sure why you'd need the two hooks in front since there's already a zipper), this could be my favorite running bra. But until then, I'll have to return this.